Shelving unit



FIG. 1 is a front elevational view of the preferred embodiment of the invention;

FIG. 2 is back end view thereof;

FIG. 3 is right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a shelving unit, as shown. 